-Why are you still here? Everybody has gone to attend the lecture by the president.-Oh, I ____ about it!
____ either he or I to attend the mass meeting this evening.
Either he or I ____ to attend the mass meeting this evening.
To play basketball and to go swimming ___ useful for character-training.
Early to bed and early to rise ____ a good habit.
Both rice and wheat ____ grown in that country.